LG 55 B4 vs Sony A95L

The brightness results in HDR materials for LG B4 are very good. It is true that none of them exceed 1000 nits, although the stability of luminance is excellent and looks practically the same in every scenario. The only moment where the tested television performs worse is the last of the scenes, although this should not be surprising. Large frames filled with a lot of white have always been, and probably will continue to be, somewhat of a weakness for OLED televisions. However, the combination of perfect contrast, black levels, and brightness of LG B4 allows for a full experience of the HDR effect. Additionally, the incredibly high coverage of the DCI-P3 colour gamut deserves recognition, reaching 99%. This makes the colours look incredibly vivid and striking.

Sony A95L offers an incredible HDR effect, achieving an impressive brightness level of 1500 nits in scenes such as those from Life of Pi or Sicario 2. These results are truly remarkable – the bright elements in these films practically come to life on the screen, providing the viewer with immersive visual experiences. The only thing that can be noticed is minor issues with maintaining brightness in a scene from The Meg, where the entire scene is flooded with light. However, this is a natural effect associated with OLED technology. The wide coverage of the BT.2020 colour palette at 89% also deserves high praise, placing A95L Sony among the top televisions in terms of colour reproduction. All this is made possible by the QD-OLED panel from Samsung Displays.

The best factory mode prepared by the manufacturer is "Filmmaker," which is exactly what we used throughout the entire testing procedure. We must admit that the unit we received out of the box had quite good colour reproduction. The biggest problem in both SDR and HDR content turned out to be white balance. In the former, a strong red hue was evident, causing the displayed image to have a pronounced yellow tint, particularly noticeable on skin tones and whites. In higher quality materials, this colour was also accentuated, but due to a lack of blue, there were also signs of green visible. Apart from these issues, we also encountered problems with grayscale and the colours themselves.

The best factory mode for colour reproduction in the Sony A95L is IMAX Enhanced. This mode appears to be well calibrated at first glance, but upon closer examination, several areas requiring improvement can be identified. Firstly, the white balance for both SDR content and 4K HDR is affected by an excess of blue and red, leading to a subtle pinkish hue, particularly noticeable on neutral tones. As a result, skin tones are distorted, impacting the realism of the displayed image. This is clearly visible in the comparison image below. Additionally, the Colour Checker test confirms the presence of these errors – colour samples often deviate from their reference values, indicating some inconsistencies in the factory colour reproduction of the A95L Sony. Maximum deltaE error values reach up to 5.8, which is a clear indicator that colours are not always reproduced as precisely as they should be.

Regarding brightness characteristics, gamma for HD/SDR content is generally quite accurate, maintaining an appropriate balance between brightness and contrast. Unfortunately, a significant jump is visible at the end of the graph, leading to a strong brightening of the image when the screen is entirely flooded with white. This can make scenes with a very bright background, such as snowy landscapes or bright daylight, appear too harsh and lose detail. For HDR content, the EOTF curve, which controls luminance, is slightly boosted compared to reference values. This, in turn, causes the image to appear somewhat brighter than it should, which can affect the viewing of more subtle details in the darker parts of the frame.

LG B4 has been providing very advanced calibration tools in its televisions for years. We can even say that as the only manufacturer on the market, it allows for such deep intervention in image adjustment. It is thanks to these tools that we were able to calibrate the device so well. Evidence of this is the extremely low deltaE errors, which can be said to be at a reference level. Both SDR and HDR materials now look exactly as intended by the film director. It is no coincidence that televisions of this brand are most often used as preview screens for various graphic or post-production studios.

Sony A95L offers excellent tools for professional screen calibration, which allows users to unlock the maximum potential of the IMAX Enhanced mode. We utilised these tools to achieve a picture quality that will satisfy even the most demanding viewers. After calibration, the white balance for both 4K HDR and SDR content looks simply superb – almost perfect. The Colour Checker test confirmed that deltaE errors do not exceed the value of "2", which means that colour reproduction is incredibly accurate, and any deviations are practically unnoticeable to the human eye.

Calibration also brought significant improvements in terms of brightness – gamma is now perfectly balanced, eliminating the previous issue of excessive lightening in scenes with very bright backgrounds. As a result, even the most vibrant moments, such as snowy landscapes or intense daytime scenes, appear natural, without any risk of overexposure. The EOTF curve, responsible for controlling luminance in HDR content, has also been improved – it now reaches reference levels, both in synthetic tests and during practical movie watching.

As a result of the calibration, A95L Sony offers outstanding experiences, whether you are watching content from regular television or your favourite films. Every detail is reproduced exactly as the creators intended – without unnecessary brightening, with perfectly rendered colours and appropriate depth. This demonstrates that this television, after professional tuning, is capable of competing with the best screens on the market, delivering a picture that truly delights.

In this paragraph, we will take another look at the function for smoothing tonal transitions, but we will also check how the television handles lower quality material. As we have managed to verify, the setting responsible for smooth gradation works quite efficiently, although it has its weaker moments. Just as the function works correctly in SDR content, it becomes rather useless in HDR content. Even at the lowest of the options, it blurs essential details, which is why we advise against using it.

The image scaling on LG B4 is rated rather moderately positively. Although there is no edge doubling, the image itself is naturally "soft." We can change this by adjusting the sharpness slider.

The tonal transition smoothing feature in Sony A95L works really well and is worth noting. We recommend setting it to "Medium" because at this level, you achieve the perfect compromise – no artifacts appear, and the image looks incredibly natural and pleasing to the eye. As a result, the transitions between different shades are smooth while maintaining the detail of the scenes, which further enhances the viewing comfort.

When it comes to upscaling, you can see the full power of the XR processor here. Sony A95L handled our test material featuring a model exceptionally well – the image is remarkably clear, there are no excessive jagged edges, and details in the background are perfectly preserved. The XR processor effectively improves low resolution, delivering very good results that allow you to enjoy materials in almost high quality, even if their source is not ideal.

The maximum refresh rate that we can set on the LG B4 is 120 Hz. This is the absolute minimum for those requiring high image fluidity. The manufacturer has implemented a multi-step motion smoother called "TruMotion". It has been divided into two separate sliders adjusting the sharpness of moving images (De-Blur) and jitter (De-Judder). Both sliders can be set in the range from 0 to 10, with each degree affecting the level of fluidity, so everyone can find their golden mean.

The LG OLED B4 panel features an average response time of 0.1 ms (which directly results from our measurements), allowing for an incredibly clear image, unattainable for LCD televisions, whose response times can be as high as several milliseconds. This is clearly evident in the pictures from the "UFO Test", showing no trail following the object.

Sony A95L is a television that should satisfy both gamers and cinema lovers. When it comes to watching films, this model is equipped with the Motionflow feature, which allows you to precisely adjust whether you want the image to be more "cinematic," like in traditional cinema, or exceptionally smooth, like in cinema-style TVs. The "Smoothness" slider lets you regulate the level of fluidity – from subtle changes to a more noticeable effect, while the "Clarity" slider is responsible for reducing flicker and artifacts, helping to achieve a more natural and clear motion. As for gaming and watching sports, the A95L Sony television offers a refresh rate of 120 Hz, making every dynamic action look incredibly smooth. Gamers will appreciate the lack of blur, while sports fans will see every movement in full clarity. Overall, the television performs excellently – both with fast-paced games and emotionally charged film sequences.

The LG B4 television is equipped with four fully-fledged HDMI 2.1 ports with a full bandwidth of 48Gbps. All features that are identical to this standard were activated without any issues, and throughout the entire testing process, they did not cause any problems. The combination of such extensive functionality and low input lag suggests that the tested television is truly made for gaming. This is not surprising, considering that the manufacturer has always placed great emphasis on this. Therefore, we can enjoy both the properly implemented HGIG mode and gaming in Dolby Vision with low latency. This pairing will certainly attract the attention of all passionate gamers for whom quality is paramount.

An additional standard in televisions from this Korean manufacturer is the implementation of GameBar, allowing for quick adjustment of settings "on the fly," without the need to exit the game. It also enables image adjustments for individuals with visual impairments, which is a very nice touch. Another important piece of information is that when VRR technology is enabled, we will not experience a drop in contrast. This is thanks to the construction of the panel and the lack of conventional backlighting. However, it is normal for shades of grey to flicker slightly; nevertheless, this is a characteristic feature of this function regardless of the manufacturer or television.

In summary: the LG B4, like all of the manufacturer’s OLEDs equipped with 120Hz panels and HDMI 2.1 ports, creates a harmonious whole with the console. In practice, this is a comprehensive television, and if we expect the highest possible efficiency in gaming, B4 will be the ideal choice.

Sony A95L is a television that will truly satisfy gamers, thanks to several key features that set it apart from the competition. To start with, the 120 Hz refresh rate – this is something everyone who loves fast action games, racing, or dynamic shooters will appreciate. As a result, the image is exceptionally smooth, and the gameplay is more satisfying, without annoying stuttering. The A95L Sony also has an ALLM (Auto Low Latency Mode) feature, which automatically engages low latency mode when we turn on the console. What does this mean? Above all, faster response on the screen, which in games where every second matters is simply invaluable. Additionally, there’s VRR (Variable Refresh Rate), which adjusts the image refresh rate to the number of frames generated by the console. The effect? No tearing of the image, and everything looks smooth and cohesive – even with variable FPS.

It is worth mentioning the support for Dolby Vision with low input lag in games – something we don’t often encounter in televisions, and here we have it onboard. Thanks to this, the image in games that support HDR is incredibly vibrant, with rich colours and excellent contrast. Both the brightest and darkest details are visible, making everything look as the game creators intended. And then there's the "Game Bar" – a small but very practical feature. With it, we have all the most important gaming-related settings at our fingertips, such as VRR or latency information. There’s no need to interrupt gameplay to adjust parameters – everything is right at hand.

However, it should be remembered that the A95L offers only two full-bandwidth HDMI 2.1 ports, one of which is designated for eARC. This may pose a limitation if we plan to connect multiple devices – for instance, a next-gen console and a soundbar simultaneously. In such a case, the eARC occupying one of those ports can be somewhat problematic, blocking the possibility of connecting a second console.